SIGGRAPH 2009 有點立體

拿到 SIGGRAPH 2009 的 Advance Program 這本節目單,第一件事就是搜尋一下 stereoscopic(立體),心裏頭正嘀咕,想說應該就是 Bolt, Monsters vs. Aliens, NVidia Stereoscopic 3D 這三個主題會提到的吧。赫然發現,今年的 Computer Animation Festival 也有沾一點邊: Experience the most innovative and stimulating work in computer-generated content from narrative animation to scientific and music visualizations and visual music, videogames to real-time simulations, and commercials to visual effects. The Computer Animation Festival features panels, talks, and presentations exploring the latest in production processes, the nuances of visual music, real-time discussions and demonstrations, tools for urban planning and rebuilding after Katrina, special 3D stereoscopic sessions and screenings, of films from computer graphics visionaries. ...

June 18, 2009 · 2 min · Shuen-Huei Guan

SIGGRAPH 2009 Computer Animation Festival Preview

May 29, 2009 · 0 min · Shuen-Huei Guan

Planet of Panorama in Digimax R&D; room's sideview

整理電腦的時候,發現 2005 6 月時拍的照片,那時借了郭秉的相機,想利用 image stitch 製作出一個 panorama 來。 換個角度看,就成了下圖:

February 16, 2009 · 1 min · Shuen-Huei Guan

SIGGRAPH 2008, Photos Only

August 18, 2008 · 0 min · Shuen-Huei Guan

Adventures in Animation 3D

Adventures in Animation 3D ,一部 2004 年,IMAX 規格,全 CG 立體動畫(Full CG 3-D animation),由 Pierre Lachapelle . 擔任導演(Director)兼製作人(Producer)(他同時擁有 dna research 這家開發了 3Delight 的公司)。 動畫的內容,是講述一位 3D 角色是怎麼被創作出來的,從多邊型(polygons)、骨架(skeleton)、頭髮與衣服的模擬(hair and cloth simulation)到最後的動畫(animation),聽起來像是一部「教學光碟」,或是什麼「認識 3D 動畫」。 看了官網上頭的預告片 後,真希望可以看到完整版~ 下頭是我節錄自預告片中的開場白: In the beginning, they were complex mathematical formulas. Then, came to polygon. The polygon became the boot. And the boot became Slim. But Slim wanted to be more than a bunch of polygons. ...

January 24, 2008 · 1 min · Shuen-Huei Guan

Shader Ball & Lit Sphere Shading

如果,開發像上頭這張圖所呈現的視覺效果,是很容易,而且可以隨著人的藝術創造力而有不同的變化,並且使用在 3D 動畫裏頭也很順利且自然的話,那該是件多麼有趣的事… 1986 年,Steve Strassmann 在 SIGGRAPH 上發表了一篇論文 – Hairy Brushes ,目的在透過一些方法,模擬出中國國畫中的水墨畫(不過當時,他的論文裏是指日本水墨畫…但其實就是中國水墨畫嘛…這樣的情況,可以用「情何以堪」嗎?)。這個論文的發表,說不定是「看得到」的最早 NPR 論文研究了。(所以,我們可以說 Steve Strassmann 是 NPR 之父嗎?) NPR 是 Non-Photorealistic Rendering ,和電腦圖學 (Computer Graphics) 發展至今的 rendering 研究相較起來,NPR 根本是「旁枝末節」:一點兒都不重要,也沒什麼技術貢獻的玩意兒。但它卻愈來愈常出現在我們的生活中,尤其是娛樂產品… NPR 雖然只是 CG 裏的一個小分支,而且年輕得很,但它的的研究方向與成果卻也不少,受重視的程度,不亞於那些正規研究,最明顯的例子,就是有一個專門辦來供 NPR 相關研究投稿用的 – NPAR ,一個在 2003 年開始經營,至今已經 5 歲了的學術會議。SIGGRAPH 1999 那年,還因此新開了一個全力的 course,就叫 Non-Photorealistic Rendering ,這個 course 的講師一流,內容由淺入深,是個非常適合入門 NPR 的素材,看完這一份 course,再去看現在的 NPR 發展,會有非常大的幫助。 ...

November 25, 2007 · 1 min · Shuen-Huei Guan

Edward's Storied Navigation

Today, people are able to tell stories by manipulating individual media artifacts and by composing media artifacts using modern technologies. However, these tools do not assist users in the plot development activity. Specifically, when a user tries to construct his/her story plot based on a media collection ( e.g., photos, videos, etc.), these tools cannot provide helpful information about the possible narratives. In this project we present a novel approach: “Storied Navigation”. In this mode of navigation, media segments are annotated using free text and stored as a collection. To tell a story, the user inputs a free text sentence, and the system suggests possible segments for a storied succession, which helps the users’ exploration in the domain of possible stories. This process iterates progressively. The system achieves the association between the input and the segments’ annotations using reasoning technique including WordNet and commonsense reasoning technology. We have conducted an initial evaluation on the appropriateness of this method, and we believe it is a promising first step towards the goal of making storytelling activities immersive, and enjoyable interactions. ...

October 23, 2007 · 2 min · Shuen-Huei Guan

國寶總動員裏的宋朝工筆畫

國寶總動員 有段故事橋段是這樣的… 嬰兒枕覺得玩轉心瓶有點無聊,剛好看到翠玉白菜上頭的螽蟴(ㄓㄨㄥ ㄙ),於是很開心地把它抓了起來,急著拿去到處秀。第一個現寶的對像,就是住在一幅國畫–冬日嬰戲圖–宋朝–工筆畫–裏的姐弟倆… 我參與這個案子的任務之一,是不管用什麼手段,負責把嬰戲圖的樣貌搞定。為此,花了三個月的時間,整天和這些所謂的 NPR ( Non-Photorealistic Rendering ) 博鬥,最後,卻是使用合成的方式搞定一切(還好,我們有 Ahdee 這位天字一號的合成大師)。然後呢,這一篇還很幸運地,進了 SIGGRAPH 2007 research poster ( [ACM Portal](http://portal.acm.org/citation.cfm?id=1280720.1280921&coll=ACM&dl=ACM&type=series&idx=1280720&part=Proceedings&WantType=Proceedings&title=International%20Conference%20on%20Computer%20Graphics%20and%20Interactive%20Techniques&CFID=15151515&CFTOKEN=6184618 “NPR in production: animating the Sung dynasty painting “Children at Play” @ ACM Portal” ) )。 這是那幅嬰戲圖的數位縮小版,引用自故宮博物網站 。 摘錄部分故宮的介紹文字在這邊,全文請至官方網站 。 宋人 冬日嬰戲 絹本 色設畫 軸 縱196.2公分 橫107.1公分 ...

October 10, 2007 · 2 min · Shuen-Huei Guan